Year	annual % growth
1972	0.8777948611735695
1973	9.43915018348342
1974	2.219388078207828
1975	-8.19319346010559
1976	-4.374311495515499
1977	-3.8510911885379215
1978	0.9669326343277902
1979	-0.27320658010636123
1980	5.442882505692694
1981	-0.7914335617309831
1982	-2.047446425320416
1983	-0.77014196245824
1984	5.041537562259151
1985	-9.485482491507241
1986	-4.867468925370233
1987	3.1409354073526004
1988	0.605083108710744
1989	-0.428329867317359
1990	-2.7253984053126317
1991	-0.3238145431323005
1992	-0.054735722660780084
1993	3.454985693914736
1994	0.7381513701978406
1995	3.7390978643913115
1996	2.3128560658793447
1997	1.6484311362947182
1998	-0.13340937811270237
1999	0.10667304406139522
2000	3.562000541775518
2001	1.1967519423747035
2002	6.810187767156023
2003	5.274423737823724
2004	3.2019323270243234
2005	5.594825132667552
2006	5.225330333278322
2007	2.2993502783146056
2008	-4.888060387438429
2009	4.5058035646870565
2010	2.1556161888118197
2011	1.0732683897455502
2012	0.26022737340640845
2013	0.29104594945555107
2014	0.1736403449354782
2015	1.9214708979107087
2016	-1.1837267957730262
2017	2.014633038077406
2018	-0.5262367802933596
2019	-0.06671723023134746
2020	-5.658400432224852
2021	5.285753683895365